L3 - Phased and sequenced Therapy

Question 1

Articular Disc

Answer 1

dense fibrous CT

no nerves or blood vessels, CAN endure heavy forces

Question 2

Retrodiscal tissue

Answer 2

HAS innervation

Question 3

Anatomic structures of the TMJ

Answer 3

Articular disc and retrodiscal tissue

Question 4

Fibers from the WHAT pull the disk down and forward?

Answer 4

Lateral Pterygoid

Question 5

Disc is tightly attached to the head of the condyle by the?

Answer 5

medial and lateral collateral (discal) ligaments

Question 6

Major stabilizing muscles of the TMJ?

Answer 6

Masseter (opens)
Medial pterygoid (opens)
Temporalis (opens)

Superior head of the lateral pterygoid (closes)

Question 7

Lateral pterygoid controls?

Answer 7

Protrusive, side to side and opens the mouth

Question 8

centric relation

Answer 8

most musculoskeletal stable position of the TMJ

Question 9

How many (minimum) posterior stops for stability?

Answer 9

4

Question 10

Curve of Spee

Answer 10

teeth aligned parallel to the arc of closure.

Protrusive disocclusion of posterior teeth

Question 11

Curve of wilson

Answer 11

facilitates tongue and cheek action for positioning food on the occlusal table
Permits lateral mandibular excursions free from posterior interferences

Question 12

VDO

Answer 12

superior-inferior relationship of the maxilla and mandible when the teeth are situated in MIP

Question 13

VDO can be measured based on

Answer 13

subjective signs related to esthetics and phonetics

Question 14

VDO = VDR - 3mm

true or false?

Answer 14

True

Question 15

PDL helps control forces placed on teeth

true or false

Answer 15

true

Question 16

Axial Loading

Answer 16

each tooth should contact in such a manner that the forces of closure are directed through the long axis of the tooth

Question 17

What teeth are best suited to accept horizontal forces of occlusion?

Answer 17

CUSPIDS….

long, thick roots.

Question 18

What is canine guidance?

Answer 18

when canines disocclude the posterior teeth in lateral excursions.

Question 19

If canines are not positioned well or absent, what is the best occlusal scheme?

Answer 19

group function

Question 20

What is group function?

Answer 20

when several posterior teeth on the working side contact during excursions.FOUR points of contact

No contact on NON-Working side during excursions

No posterior contact during protrusive movements

Question 21

Most desirable contacts?

Answer 21

Canine plus premolars and the MB cusp of the FIRST MOLAR

Question 22

Mutually protected occlusion

Answer 22

Posterior teeth should contact slightly more heavily than anterior teeth in centric occlusion

Question 23

Thick tissue biotype

Answer 23

Low risk
Resistant to recession
Masks color
Scarring risk